Support for electric lights



(No Model.) f

A. G. SCHLO'Y1`TERBIECK. SUPPORT `TOR ELECTRIC LIGHTS. No. 362,399. Patented: May 3, 1887.

' land and State of Maine, have invented cerf UNITED STATES PATENT OEEICE.

SUPPORT FOR ELECTRIC LIGHTS.

SPECIFICATION forming part of Letters Patent No. 362,399. dated May 3, 1867.

To @Z whom it may concern,.-l

Beit known that I, AUGUSTUS G. ScHLoTTER- BECK, of Portland, in thecounty of Cumbertain new and useful Improvements in Supports for Electric Lights; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which forni a part of this specification.

Figure l is a side elevation of myinvention. Fig. 2 is a side view with parts broken out. Fig. 3 is a plan view of the lever, Vwith its ratchet and pawl,to operate the device seen in Fig. 1,with parts removed to exhibit the ratchet and pawl. Same letters show like parts.

My invention relates to electriclight arms for the support of electric lights.

The especial object of this invention is to provide a support for electric lights, and one that at the same time will allow the light to be elevated to a proper position for illuminating purposes and lowered for replenishing, trim; ming, and adjusting. vThe desirable thing is to have an electric light so suspended that it can be hung over a street, over or nearly over the center thereof, and still so arranged that it can be taken down easily and readily for' the purposes above named.

a shows a post to be set (when, the light is suspended out-of-doors) in the ground. Suppose that the light is to be hung overastreet. Then, with my invention, the posta may be set at the edge of the street or on the outer edge of the sidewalk. At the top of this post a, eX- tending horizontally, is the arm Z. This arm is pivoted at the top of the post a into or on said post, and the arm b is capable of swinging upwardly and downwardly in a vertical plane on said pivot. This pivot is seen at c. The arm I), where it is pivoted to the said post a, has a semicircular head or plate, d. This head or plate has on a part of the circumference the teeth e.

Extending up on the post ais a rod, f. This rod has on its upper end the screw-thread g. This rod runs through proper eyes or holders It on the post a, and is held in proper bearings Appiitdtioniea october es. isst. semi No. aimes.

(No model.)

at the top of the post a, that will be in detail hereinafter descri bed. Thescrewthread g fits into the teeth e ofthe head or plate d. Thus by the revolution of the screw-thread g the head or plate Z is made to turn on the pivot c accordingly as the screw-thread is turned. As the head or plate d revolves,so the arm b moves upwardly or downwardly.

The rodf extends down near enough to the ground so that it can be operated by a person standing on the ground. Thus by turning the rod f the arm b can be raised up to the position seen in Fig. l, or dropped down to the posi tion indicated by the dotted lines in the saine figure.

t' shows the lelectric light attached to the outer end of the arm b.

The toothed head or plated and the screwthread g may be inclosed in a boX, (seen in Fig. 2,) if desired. Then the rod f and the screw-thread g will have their bearings in the bottom and top of the box, as herein shown. j is a brace to aid in supporting the arm b when raised to a horizontal position, as seen in Fig. l. It is made to catch in a holder, k,when the arm Z1 is up horizontal. It can be thrown out of the catch 7c by a pole or other means when it is desired to lower the, arm b. The brace j may be made in various forms. It may be straight and catch into a toothed rack set in a groove on the post a. Then, when the arm b is lowered, the rack may be allowed-to slide downwardly as the arm b drops down tothe vertical position seen in Fig. l, or the brace may be thrown out of the teeth of the rack and the rack remain stationary.

Another form of a brace is onelike a chaisetop brace. This is pivoted at one end to the arm b and at the other to the post a. It has a joint at the center, and is rigid when the brace is straight. Then,when the arm is to be lowered, the center joint is bent inwardly and folds up as the arm b descends.

To revolve the rod f and turn the screw thread g, I have devised the lever Z. This lever is seen in plan in Fig. 3. It has a hollow head, in which is a ratchet and pawl. The ratchet has a hole, m, to fit the square end of the rod f. As the handle aisswung theratchet carries around 'the pawl, and so turns the rod f. By reversing the lever so that the other face is upward the swinging of it will turn the rod IOO f in the opposite direction. Thus the lever The pivoted arm b, having the electric light, can be handily employed to turn the rod f as set forth, the head or plate d, the rodf,with 15 either way desired, and soto raise or lower the a screwthread thereon to Work in the teeth c arm b. o o are lateral braces to strengthen the of the plated, allin combination with the brace 5 arm b and prevent lateral swinging. These are j, as and for the purposes herein set forth.

attached to the arm b at p and to the post a at In testimony that I claiin the foregoing as the pivote. In order that they may give iirmmy own I affix my signature in presence of 2o ness to the arm b, they should diverge as they two witnesses. approach the post a. 'With that View the pivot 1o cmay be sufficiently long to separate the braces AUC" G' SGHLOTTERBLCK' enough at that point. Witnesses:

What I claim as my invention7 and desire to CHARLES S. COOK,

secure by Letters Patent, is CHARLns S. XVooDiURY. 

